20784940

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{94477}}^1$

素因数の和:94497

約数の個数: 24

約数和(自身を含む): 47616912

約数和(自身を除く): 26831972

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 94477, 188954, 377908, 472385, 944770, 1039247, 1889540, 2078494, 4156988, 5196235, 10392470, 20784940]

約数ペア:

[(1, 20784940), (2, 10392470), (4, 5196235), (5, 4156988), (10, 2078494), (11, 1889540), (20, 1039247), (22, 944770), (44, 472385), (55, 377908), (110, 188954), (220, 94477)]